1319949053 has 4 divisors (see below), whose sum is σ = 1326649500. Its totient is φ = 1313248608.

The previous prime is 1319949041. The next prime is 1319949101. The reversal of 1319949053 is 3509499131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1269283129 + 50665924 = 35627^2 + 7118^2 .

It is a cyclic number.

It is not a de Polignac number, because 1319949053 - 2⁸ = 1319948797 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1319948995 and 1319949013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1319949023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3349928 + ... + 3350321.

It is an arithmetic number, because the mean of its divisors is an integer number (331662375).

Almost surely, 2^1319949053 is an apocalyptic number.

It is an amenable number.

1319949053 is a deficient number, since it is larger than the sum of its proper divisors (6700447).

1319949053 is an equidigital number, since it uses as much as digits as its factorization.

1319949053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6700446.

The product of its (nonzero) digits is 131220, while the sum is 44.

The square root of 1319949053 is about 36331.1031073927. The cubic root of 1319949053 is about 1096.9471974545.

The spelling of 1319949053 in words is "one billion, three hundred nineteen million, nine hundred forty-nine thousand, fifty-three".